Container Insert With Self-Venting Flexible Valve
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Solution Overview
Problem
Existing container inserts for closed loop dispensing systems require multiple parts and assembly time, and often necessitate mechanical interaction to open the chemical valve for dispensing, which complicates the process and increases manufacturing costs.
Innovation Solution
A container insert is designed with a substrate portion and over-molded portion simultaneously molded, featuring a self-venting mechanism with bi-directional valves and a flexible valve that reduces part count and assembly time, allowing for automatic operation and recyclability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple parts are used in the container insert, then the functionality is improved, but the assembly time and manufacturing cost increase
Solution Approach 1:
The patent combines multiple functional components (substrate portion, over-molded portion, chemical valve, venting mechanism) into a single integrated container insert. The over-molding process merges the substrate and over-molded portion into one piece, eliminating separate assembly steps and reducing part count while maintaining all necessary functions including chemical dispensing and venting capabilities.
Solution Approach 2:
The container insert is designed as a multi-functional component that simultaneously provides structural support, chemical valve control, venting mechanisms, and sealing functions. The single insert structure performs multiple roles that would traditionally require separate parts, reducing assembly complexity while enhancing versatility.
2Adaptability or versatility
If multiple parts are used in the container insert, then the functionality is improved, but the manufacturing cost increases
Solution Approach 1:
The over-molding process combines two molding operations into a single manufacturing step, where the over-molded portion is formed directly on the substrate portion. This merging eliminates separate assembly operations and reduces the total number of parts that need to be manufactured, stored, and assembled, thereby lowering manufacturing costs while maintaining full functionality.
Solution Approach 2:
The substrate portion is prepared with specific features (such as recesses, protrusions, or surface treatments) before the over-molding process begins. This preliminary preparation ensures that the over-molded portion bonds properly and integrates seamlessly, enabling the manufacturing of a complex multi-functional part in one operation rather than requiring post-assembly of multiple components.
3Reliability
If mechanical interaction is required to open the chemical valve, then the valve control is improved, but the operational complexity increases
Solution Approach 1:
The container insert incorporates a self-venting mechanism that automatically opens and closes the chemical valve in response to pressure differential across the membrane. The flexible membrane responds passively to pressure changes, eliminating the need for external mechanical actuation while maintaining reliable valve control. The system serves itself by using the process conditions (pressure differential) to control the valve.
Solution Approach 2:
The patent replaces complex mechanical valve actuation systems with a simple flexible membrane mechanism. Instead of using motors, solenoids, or mechanical linkages to open and close the chemical valve, the system uses the elastic deformation of a flexible membrane in response to pressure differential, significantly simplifying the operational complexity while maintaining reliable valve control.
4Extent of automation
If a flexible valve is used for automatic venting, then the automation is improved, but the device complexity increases
Solution Approach 1:
The flexible valve is integrated directly into the over-molded portion of the container insert, merging the venting function with the structural component. This integration eliminates the need for separate venting mechanisms or additional moving parts, achieving automatic venting functionality while minimizing device complexity through consolidation.
Solution Approach 2:
The patent uses a flexible membrane or thin film structure to create the automatic venting valve. This flexible shell responds to pressure differential by deforming elastically, opening or closing the vent passage as needed. The use of flexible materials allows for simple, lightweight automatic venting without complex mechanical components, maintaining low device complexity while achieving high automation.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution results in a cost-effective, durable, and automatically self-venting container insert that reduces manufacturing costs and simplifies the dispensing process by integrating multiple functions into a single molded piece, enhancing the efficiency and recyclability of the closed loop dispensing system.
Implementation Method 1
The flexible valve is opened upon the upper side of the flexible valve being subjected to a suction force thereby permitting liquid from the container to pass upwardly therethrough
Implementation Method 2
Each of the bi-directional valves are movable downwardly to an open position to permit air to pass downwardly therethrough to vent the container. Each of the bi-directional valves are movable upwardly to an open position to permit the gas in the container to be de-gassed upwardly therethrough
Data Source
AI summary
A container insert is disclosed for use with a closed loop dispensing system. The container insert is press-fitted into the throat of a liquid container. The container insert is comprised of a plastic substrate portion and an over-molded portion. This invention is directed to the method of simultaneously molding the plastic substrate portion and the over-molded portion.